A logical view of the cartographic information based on the Polygonal Subdivision is studied. A multi-purpose map is represented by a collection of several database relations related to each other. Some of them are entity relations expressing geographic entities, and others are relationship relations expressing various types of incidences among entities. Elementary data manipulation operations on the cartographic databases are studied, and implementation of geographic information systems is discussed.
KeywordsLine Segment Road Segment Database Management System Geographic Information System Relationship Relation
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- 1.U. S. Bureau of Census, Proc. of Geographic Base File System Conference, Plans, Programs and Project, Computerized Geographic Coding Series, GE60, No. 2, 1971.Google Scholar
- 2.Comprehensive Planning Organization of the San Diego Region. General Systems Description, 1974.Google Scholar
- 3.E. F. Codd, Normalized Data Base Structure: A Brief Tutorial, IBM Research, RJ 935, 1971.Google Scholar
- 4.I. Kobayashi, Schema Type Classification of Database Management Systems using a Proposed Conceptual Schema. Proc. International Computer Symposium, Taipei, Taiwan, 1978.Google Scholar
- 5.K. Kohri and Y. Chiba, FORIMS Phase 2 Design Specification: A FORTRAN Oriented Information Management System, The Soken Kiyo, Vol. 5, No. 1, Nippon Univac Sogo Kenkyusho, Inc., 1975.Google Scholar